254665291 has 2 divisors, whose sum is σ = 254665292. Its totient is φ = 254665290.

The previous prime is 254665289. The next prime is 254665319. The reversal of 254665291 is 192566452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254665291 - 2¹ = 254665289 is a prime.

It is a super-2 number, since 2×254665291² = 129708820880229362, which contains 22 as substring.

Together with 254665289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (254665231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127332645 + 127332646.

It is an arithmetic number, because the mean of its divisors is an integer number (127332646).

Almost surely, 2^254665291 is an apocalyptic number.

254665291 is a deficient number, since it is larger than the sum of its proper divisors (1).

254665291 is an equidigital number, since it uses as much as digits as its factorization.

254665291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 40.

The square root of 254665291 is about 15958.2358360816. The cubic root of 254665291 is about 633.8549982357.

The spelling of 254665291 in words is "two hundred fifty-four million, six hundred sixty-five thousand, two hundred ninety-one".